Feeding ecology of shallow water meiofauna: insights from a stable isotope tracer experiment in Potter Cove, King George Island, Antarctica
Antarctic meiofauna is still strongly understudied, and so is its trophic position in the food web. Primary producers, such as phytoplankton, and bacteria may represent important food sources for shallow water metazoans, and the role of meiobenthos in the benthic-pelagic coupling represents an impor...
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ftvliz:oai:oma.vliz.be:219339 2023-05-15T13:33:16+02:00 Feeding ecology of shallow water meiofauna: insights from a stable isotope tracer experiment in Potter Cove, King George Island, Antarctica Pasotti, F. De Troch, M. Raes, M. Vanreusel, A. 2012 http://www.vliz.be/nl/open-marien-archief?module=ref&refid=219339 en eng info:eu-repo/semantics/altIdentifier/wos/000310207900002 info:eu-repo/semantics/altIdentifier/doi/oi.org/10.1007/s00300-012-1203-6 http://www.vliz.be/nl/open-marien-archief?module=ref&refid=219339 info:eu-repo/semantics/restrictedAccess %3Ci%3EPolar+Biol.+35%2811%29%3C%2Fi%3E%3A+1629-1640.+%3Ca+href%3D%22http%3A%2F%2Fdx.doi.org%2F10.1007%2Fs00300-012-1203-6%22+target%3D%22_blank%22%3Ehttp%3A%2F%2Fdx.doi.org%2F10.1007%2Fs00300-012-1203-6%3C%2Fa%3E Isotopes Meiobenthos Daptonema PSW Antarctica Antarctic Peninsula South Shetland I. King George I. Potter Cove info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2012 ftvliz https://doi.org/10.1007/s00300-012-1203-6 2022-05-01T09:49:56Z Antarctic meiofauna is still strongly understudied, and so is its trophic position in the food web. Primary producers, such as phytoplankton, and bacteria may represent important food sources for shallow water metazoans, and the role of meiobenthos in the benthic-pelagic coupling represents an important brick for food web understanding. In a laboratory, feeding experiment 13 C-labeled freeze-dried diatoms ( Thalassiosira weissflogii ) and bacteria were added to retrieved cores from Potter Cove (15-m depth, November 2007) in order to investigate the uptake of 3 main meiofauna taxa: nematodes, copepods and cumaceans. In the surface sediment layers, nematodes showed no real difference in uptake of both food sources. This outcome was supported by the natural d 13 C values and the community genus composition. In the first centimeter layer, the dominant genus was Daptonema which is known to be opportunistic, feeding on both bacteria and diatoms. Copepods and cumaceans on the other hand appeared to feed more on diatoms than on bacteria. This may point at a better adaptation to input of primary production from the water column. On the other hand, the overall carbon uptake of the given food sources was quite low for all taxa, indicating that likely other food sources might be of relevance for these meiobenthic organisms. Further studies are needed in order to better quantify the carbon requirements of these organisms. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica King George Island Copepods Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) Antarctic Antarctic Peninsula King George Island Potter Cove Polar Biology 35 11 1629 1640 |
institution |
Open Polar |
collection |
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) |
op_collection_id |
ftvliz |
language |
English |
topic |
Isotopes Meiobenthos Daptonema PSW Antarctica Antarctic Peninsula South Shetland I. King George I. Potter Cove |
spellingShingle |
Isotopes Meiobenthos Daptonema PSW Antarctica Antarctic Peninsula South Shetland I. King George I. Potter Cove Pasotti, F. De Troch, M. Raes, M. Vanreusel, A. Feeding ecology of shallow water meiofauna: insights from a stable isotope tracer experiment in Potter Cove, King George Island, Antarctica |
topic_facet |
Isotopes Meiobenthos Daptonema PSW Antarctica Antarctic Peninsula South Shetland I. King George I. Potter Cove |
description |
Antarctic meiofauna is still strongly understudied, and so is its trophic position in the food web. Primary producers, such as phytoplankton, and bacteria may represent important food sources for shallow water metazoans, and the role of meiobenthos in the benthic-pelagic coupling represents an important brick for food web understanding. In a laboratory, feeding experiment 13 C-labeled freeze-dried diatoms ( Thalassiosira weissflogii ) and bacteria were added to retrieved cores from Potter Cove (15-m depth, November 2007) in order to investigate the uptake of 3 main meiofauna taxa: nematodes, copepods and cumaceans. In the surface sediment layers, nematodes showed no real difference in uptake of both food sources. This outcome was supported by the natural d 13 C values and the community genus composition. In the first centimeter layer, the dominant genus was Daptonema which is known to be opportunistic, feeding on both bacteria and diatoms. Copepods and cumaceans on the other hand appeared to feed more on diatoms than on bacteria. This may point at a better adaptation to input of primary production from the water column. On the other hand, the overall carbon uptake of the given food sources was quite low for all taxa, indicating that likely other food sources might be of relevance for these meiobenthic organisms. Further studies are needed in order to better quantify the carbon requirements of these organisms. |
format |
Article in Journal/Newspaper |
author |
Pasotti, F. De Troch, M. Raes, M. Vanreusel, A. |
author_facet |
Pasotti, F. De Troch, M. Raes, M. Vanreusel, A. |
author_sort |
Pasotti, F. |
title |
Feeding ecology of shallow water meiofauna: insights from a stable isotope tracer experiment in Potter Cove, King George Island, Antarctica |
title_short |
Feeding ecology of shallow water meiofauna: insights from a stable isotope tracer experiment in Potter Cove, King George Island, Antarctica |
title_full |
Feeding ecology of shallow water meiofauna: insights from a stable isotope tracer experiment in Potter Cove, King George Island, Antarctica |
title_fullStr |
Feeding ecology of shallow water meiofauna: insights from a stable isotope tracer experiment in Potter Cove, King George Island, Antarctica |
title_full_unstemmed |
Feeding ecology of shallow water meiofauna: insights from a stable isotope tracer experiment in Potter Cove, King George Island, Antarctica |
title_sort |
feeding ecology of shallow water meiofauna: insights from a stable isotope tracer experiment in potter cove, king george island, antarctica |
publishDate |
2012 |
url |
http://www.vliz.be/nl/open-marien-archief?module=ref&refid=219339 |
geographic |
Antarctic Antarctic Peninsula King George Island Potter Cove |
geographic_facet |
Antarctic Antarctic Peninsula King George Island Potter Cove |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica King George Island Copepods |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica King George Island Copepods |
op_source |
%3Ci%3EPolar+Biol.+35%2811%29%3C%2Fi%3E%3A+1629-1640.+%3Ca+href%3D%22http%3A%2F%2Fdx.doi.org%2F10.1007%2Fs00300-012-1203-6%22+target%3D%22_blank%22%3Ehttp%3A%2F%2Fdx.doi.org%2F10.1007%2Fs00300-012-1203-6%3C%2Fa%3E |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/000310207900002 info:eu-repo/semantics/altIdentifier/doi/oi.org/10.1007/s00300-012-1203-6 http://www.vliz.be/nl/open-marien-archief?module=ref&refid=219339 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1007/s00300-012-1203-6 |
container_title |
Polar Biology |
container_volume |
35 |
container_issue |
11 |
container_start_page |
1629 |
op_container_end_page |
1640 |
_version_ |
1766040709428674560 |